Growing a small liquidambar (Liquidambar styraciflua) in an outdoor plant box is entirely possible with the right conditions. Liquidambars, also known as sweetgum trees, are prized for their stunning fall foliage and unique star-shaped leaves. While they naturally grow into large trees, dwarf varieties or young saplings can thrive in containers if properly cared for.

To succeed, choose a spacious plant box with good drainage—at least 24 inches deep and wide—to accommodate the tree's root system. Use well-draining, nutrient-rich soil and place the box in a sunny location. Regular watering is essential, but avoid waterlogging. Prune the tree occasionally to maintain its size and shape.

Keep in mind that liquidambars may outgrow containers over time, so consider transplanting them to the ground if space allows. With proper care, a small liquidambar can bring vibrant color and elegance to patios, balconies, or urban gardens.